Bottle cleaning brush



Oct. 13, 1931. P. T. EDGAR BOTTLE CLEANING BRUSH Filed April 9', 1931 2Sheets-Sheet 1 Oct. 13, 1931.

P. T. EDGAR BOTTLE CLEANING BRUSH 2' Sheets-Sheet 2 Filed April 9, 1931Patented Oct. 13, 193i UNITED STATES PAUL 'r. EDGAR, or ABCOI-A,'nmmo'xs BOTTLE CLEANING BRUSH Application filed April 9, 1931.:ise'rial 10.188392.

, This invention relates to improvements in brushes, and the primaryobject of this invention is to provide a brush especially adapted forcleaning the interior of a milk bottle or like receptacle.

A still further object of the invention is to provide an expansiblebrush that is normally collapsed, and which in a collapsed condition isinserted in the milk bottle, and may be subsequently expanded forforcing the bristles of the brush into engagement with the inner face ofthe bottle to facilitate cleaning the same when the brush is rotated.

, Other objects and advantages of the invention will become apparentfrom a study of the following description, taken in connection with theaccompanying drawings wherein:

' Figure 1 is a side elevational view of the brush embodying thefeatures of the present invention, the same being inserted in a milkbottle and shown in an expanded position for engagement with the innerface of the bottle.

Figure 2 is a side elevational view of the brush per se, the same beingin a collapsed or retracted position.

Figure 3 is a transverse sectional view taken substantially on the line3-3 of Figure 1.

Figure 4 is a similar view taken substantially on the line 4-4 of Figure2.

Figure 5 is a bottom plan view of the brush.

Figure 6 is a perspective view of a U- 35 shaped clamping elementforming a part of the present invention.

With reference more in detail to the drawings, it will be seen that 5designates a sub stantially inverted U-shaped rectangular framepreferably formed of two strands of wire twisted one about the other andproviding for the frame a crown or connecting portion 6, parallel sideportions 7 with the latter portions 7 at their free ends provided withbent portions 8 disposed inwardly of the frame and laterally of eachother as shown in Figures 1 to 3 inclusive, and preferably with the bentportions 8 terminating in upwardly extending terminals. Thus the mem- 50bers 7 provide substantially the L-shaped legs for the'frame andareconnectedatztheir. .upper ends by the .bight or bridge-portionfi. Thebristles of the brush unit Qaresecured in the twist of. the leg.members. in thensual and well known manner. The brush-units extend from.substantially the topsofthe leg, members '7 to the ends of the.term-inalszofthe lowerbent portions .8.

The wiresfforming the frameorbrush-core 5 at the 'bight or. bridge .6.haveaadgiacent por- 1 00 tions bent outwardly from one another. toprovide therebet ween suitable guide means for an operating bar 10 :thatextends centrallyand'longitudinally of the frame'asslgges'ted in Figures.1 and. 2.

Longitudinally spacedg pairsr'of oppositely disposed arms 11 are pivotedat their respective inner .endsto .the bar 10 as. at .12, rand U-shape'd.members13 are pivotallyxsecured to the outer ends of the armasiat. 14:andfixedly embrace adjacentportions oftthe side or leg members '7. a a

."For' the .upper. end of the actuatingban-IO there isprovided'asuitable handle-l5.

The resiliency ofthewireframe .or core .5 has a tendency to normally:maintain the parts in the position ashown in'IFigure .2, whereby thebrush units 9..will..loe disposed closely together, and when in thisposition, the brush is readily inserted downwardly into a'bottle 'B-such:as1a milk bottle and when the end portions 8 of the legs or sides7 engage the bottom of the bottle, a downward pressure upon the handle15 will cause the actuating bar 10 to move downwardly relative to theframe 5 causing the arms 11 to be forced outwardly, and as a result, thelegs or sides 7 of the brush will be brought into engagement with theinner Wall of the bottle and at the same time, the bottom of the brushwill be extended to entirely engage with the inner face of the bottlebottom as shown in Figure 1.

It will be also noted that during the ex pansion of the frame or core 5,the upper portion of the latter is drawn into the bottle by the flexingof the upper portion of the leg or side members 7 against the sides ofthe bottle 'to conform to the shape of the inclined inner surfaces ofthe sloping shoulders of the bottle.

(See Figure 1).

'By holding the handle 15in its lowered po- I sition, and by turning thesame, with the arts in the position shownin Figure 1, it will beapparent that the interior of the bottle along thesides and at thebottom thereof can be thoroughly cleansed in a very short period oftime.

By pulling upwardly on the handle'15, the I sides or 'legs'7 willbemoved to the position shown in Figure 2 and the frame or core 5willassume its original shape whereuponit may be withdrawn through theneck of the bottle.

vention, it 'isto be understood that the same is susceptible of changes,modifications and improvements coming scope of the appended; claim'.. y

Having thus described my'invention, what I claim as new is:

connected at their upper ends by a A-bottle cleaning-brush comprising aninverted substantially U-shaped frame formed of spring wire andconsisting of a pair of spaced oppositely disposed L-shaped legmembridge portion and having a respectivelower bent-portion disposedinwardly of the frame and laterally'of each other, an operating barextending centrally and longitudinally of I "the frame with its upperend disposed slidablythrough the bridge portion of the frame,longitudinally spaced pairs of oppositely disposed arms pivoted at theirrespective inner ends to said bar for relatively opening andclosingmovement inwardly of the frame,

U-shaped members pivotall secured to the outerends of said armsand xedlyembracing adjacent portions of said leg. members, said framebeing'tensioned to normally hold the legmembers close together, and thesaid arms in relatively closed relation, said' bar being i shift-able;relative to the frame for opening the said arms and separating the saidleg members. v r In testimony whereof I aflix my signature.

I PAUL T. EDGAR.

Even though I have herein shown and de- I scribed the preferredembodiment of'the in'-- L a

